CA1242945A - Device for manufacturing a mouthpiece and attaching mouthpieces to cigarette tobacco columns - Google Patents
Device for manufacturing a mouthpiece and attaching mouthpieces to cigarette tobacco columnsInfo
- Publication number
- CA1242945A CA1242945A CA000465224A CA465224A CA1242945A CA 1242945 A CA1242945 A CA 1242945A CA 000465224 A CA000465224 A CA 000465224A CA 465224 A CA465224 A CA 465224A CA 1242945 A CA1242945 A CA 1242945A
- Authority
- CA
- Canada
- Prior art keywords
- drum
- mouthpiece
- double length
- cigarette
- notches
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
- A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
- A24C5/47—Attaching filters or mouthpieces to cigars or cigarettes, e.g. inserting filters into cigarettes or their mouthpieces
- A24C5/471—Attaching filters or mouthpieces to cigars or cigarettes, e.g. inserting filters into cigarettes or their mouthpieces by means of a connecting band
Landscapes
- Manufacturing Of Cigar And Cigarette Tobacco (AREA)
Abstract
UNITED STATES PATENT APPLICATION
OF
JAMES WALTER SULLIVAN
and HARRY STEPHEN PORENSKI, JR.
FOR
DEVICE FOR MANUFACTURING A MOUTHPIECE
AND ATTACHING MOUTHPIECES TO CIGARETTE TOBACCO COLUMNS
ABSTRACT OF THE DISCLOSURE
A device for attaching two axially aligned cigarette tobacco columns to an intermediately disposed double length rigid mouthpiece, hereinafter referred to as a cigarette group, by wrapping a sheet of tipping material around the double length rigid mouthpiece and a portion of each tobacco column adjacent to each end of the double length mouthpiece. The device comprises a stationary rolling block located in spaced relation-ship to the periphery of a cigarette group feed drum. The feed drum carries a plurality of cigarette groups at spaced apart intervals on its' periphery with a sheet of tipping material adhesively attached at the leading edge thereof to each of the cigarette groups. As a cigarette group passes beneath the roll-ing block, the cigarette group is caused to roll in a counter direction to the rotational direction of the feed drum along the peripheral surface of-the feed drum causing the sheet of tipping material to wrap around the double length rigid mouthpiece and portion of each tobacco column immediately adjacent to the double length mouthpiece.
OF
JAMES WALTER SULLIVAN
and HARRY STEPHEN PORENSKI, JR.
FOR
DEVICE FOR MANUFACTURING A MOUTHPIECE
AND ATTACHING MOUTHPIECES TO CIGARETTE TOBACCO COLUMNS
ABSTRACT OF THE DISCLOSURE
A device for attaching two axially aligned cigarette tobacco columns to an intermediately disposed double length rigid mouthpiece, hereinafter referred to as a cigarette group, by wrapping a sheet of tipping material around the double length rigid mouthpiece and a portion of each tobacco column adjacent to each end of the double length mouthpiece. The device comprises a stationary rolling block located in spaced relation-ship to the periphery of a cigarette group feed drum. The feed drum carries a plurality of cigarette groups at spaced apart intervals on its' periphery with a sheet of tipping material adhesively attached at the leading edge thereof to each of the cigarette groups. As a cigarette group passes beneath the roll-ing block, the cigarette group is caused to roll in a counter direction to the rotational direction of the feed drum along the peripheral surface of-the feed drum causing the sheet of tipping material to wrap around the double length rigid mouthpiece and portion of each tobacco column immediately adjacent to the double length mouthpiece.
Description
~ACKGROUND OF ~HE INVEN~ION
____ 1. Field of the ~ention ~ he p~eEent invention relates to the manufacture of cigar~
ettes having a rigid mouthpiece attached at one end, and more j particularly to a de~ice for attaching two coaxially aligned - , cigarette tobacco columns to an intermediately disposed double - I length rigid mouthpiece as an interim ~tep in the manufacture of a finiPhed cigarette having a rigid mouthpiece attached at one end.
____ 1. Field of the ~ention ~ he p~eEent invention relates to the manufacture of cigar~
ettes having a rigid mouthpiece attached at one end, and more j particularly to a de~ice for attaching two coaxially aligned - , cigarette tobacco columns to an intermediately disposed double - I length rigid mouthpiece as an interim ~tep in the manufacture of a finiPhed cigarette having a rigid mouthpiece attached at one end.
2~ Description of the Present Art It is known to attach two coaxially aligned cigarette : tobacco columncf to an intermediate double length filter rod by wrapping a tipping material about the double length filter rod and a portion of each tobacco column adjacent to the filter rod to produce a filter ~od-tobacco column group. AfteI the tobacco eolumns are thu~f attached to the double length filter rod, the double length filter rod i8 cut at the transverse centerline thereby ~oviding two individual *iltered cigarettes~
Varioucf deviceq are known for per~orming the task deEcribed above, ~xamples of heretofore known devices are shown in U~S~ Patent No. 2,166,486 issued on July 18, 1939, to W~F~Mo Edwards; U~SO Patent No. 29194,378 iEsued on March 19, 19~0~ to Adolf Berndfff U~S. Pat~nt No. 2,786,472 issued on March 26, 1957~ to Richard Gruezburg; U.S. Patent No. 2,809~640 25 , issued on October 15, 1957, to Henry A~ Oldenkamp; and U.S.
_ l! patenG No- 3~ 19528 issued on September 26, 1961, to ~. Schubert.
! ~enerally9 the heretofore known devices frlctionally - en~age the perlphery of-the intermediately dispo~ed filter rod and tobacco columns causing the filte~ rod-tobacco column group -,;o roll~ thusJ wTapping the tipping material around the double length ~ilteI ~od a~d portions ~f the tobacco columns adjacent to -the end~ o~ the double length filter rod.
S~MM~RY OF TH~ INVEN~ION
_ _ _ _ While the heretofore known devices of the type de~cribed above may be satisfacto~y to connect filter rods to tobacco columns 9 a two-fold problem arises when attaching a rigid mouth-piece to the tobacco columns. ~ilter rod~ are fabricated of relatively soft, resilient fibrous or foamed materials such as, for example, cellulose acetate which presents a peripheral surface of relatively high coefficient o~ friction to the contact surface of the rolling device. However, rigid mouth-pieces are typically fabricated of a smooth, hard plastic material which has a relatively low coefficient of ~riction.
For this ~eason, when using a heretofore known rolling device to roll the double length mouthpiece-tobacco column group, it OCCUT~ that the double length mouthpiece-tobacco column group will slide rather than roll through the rolling device and the tipping material will, therefore, not be wrapped around the rigid double length mouthpiece and portions of the tobacco columns adja~ent to the ends of the mouthpiece. Increasing the normally directed force e~erted by the rolling device against the double length mouthpiece will increa~e the functional force 25- between the ~olling device and mouthpiece, however, the rigid -- material of the mouthpiece will crack if the normal force exerted against it is too great, 9~
The present invention recogni~es thi9 dilemna~ and pro-vides a solution thereto..
Mo~e particularly, in one embodiment the present invention provides a device for applying two paper rings.around the circumference of a doubel length cigarette mout~piece spaced - - ¦ apart from each other to opposite longitudinal ~ides of the transverse centerline of the double length mouthpiece, compris-ing a rotatable drum at least as wide as the length of the double length mouthpiece, the ~otatable drum having a plurality of double length mouthpiece receiving notches formed in its periphery at spaced apart intervals therearound, the notches being oriented with their longitudinal axe~ substantially parallel to the axis of revolution of the drum, and a stationary wrapping block having an arcuate contact surface concavely fac ing the pe~iphery of the drum, the a~cuate contact surface of the wrapper block corresponding to the curvature of the peripheral surface of the drum and being spaced from the peripheral surface of the dru~ by a preselected distance less than the diamete~ of the double length mouthpiece, and two ~paced apart contact zones spaced apa~t to opposite sides of the longitudinal center-line of the wrapping block adapted to contact longitudinally ~paced apart portions of the double length mouthpiece, the contact zones being of a relatively high coefficient of f~iction with the mouthpiece~
25 ; In a furthe~ embodiment the present invention provides a - . device fo~ attaching two cylind~ical tO~-JaCCo columns to an : inte~mediately disposed double length mouthpiece.by w~apping a sheet o~ tipping material around the double length mouthpiece and a po~tion of each tobacco co.lum.Q immediately adjacent to each end of the double length mou1iloiece to form a cigarette group comprising a rotatable drum at least as wide as the combined lengths of the two tobacco columns and inte~mediate ~ double length mouthpiece, the rotatable drum ha~ing a plurality _ of cigarette group receiving nptches formed in its periphery at ~paced apart intervals therearound, the notches being oriented with their longitudinal axes substantially parallel to the axes of rotation of the drum, and a stationary rolling block having an arcuate contact surface concavely facing the periphery of the drum, the arcuate contact surface of the rolling block corres-ponding to the curvature of the peripheral surface of the drum and being spaced from the peripheral ~urface o~ the dxum by a preselected distance less than the diameter of the double length mouthpiece, at least the middle zone of the contact surface being adap-ted to contact the intermediately disposed double length mouthpiece of the cigarette group on the peripheral sur~ace of the drum between adjacent notches formed in the drum being o~ relatively soft, resilient material having a rela-tively high coefficient of ~riction with the mouthpiece.
BRIEF DESCRIP~ION OF ~HE DRAWINGS
A more clear understandlng of the present invention will be had upon referenca to the following discussion in conjunction 2~ with the accompanylng draw.ings in which like numbers refer to - like parts through t.tle view.s and wherein:
Figure 1 ;Ls typical of a cigaret-te group produced by the present in~ention with the tipping material partially unwrapped to more clearly 3how details;
Figure 2 .is ~nother ve~slon of a cigarette group produced by the present invention with the tipping mater.~al partially ~ l unwrapped to mo~e clea~ly show details;
_ FiguIe 3 is a perspective view of an apparatus embodying the present invention for wrapping two spaced apart rings around the perimete~ of a double length mouthpiece spaced apaIt to opposite sides of the transverse centerline of the double length mouthpiece;
Figure 4 is an enlarged bottom view of a stationary w~ap-ping block of the present invention as viewed in the direction of arrows 4-4 in Figure 3;
Figure 5 is a perspective view of an apparatus embodying the pxesent invention for attaching two cylindrical tobacco columns to an inteTmediately disposed double length rigid mouth~.
piece; and, Figure 6 is an enlarged bottom ~iew of a stationary rolling block of the present invention as ~iewed in the diTection of arrows 6-6 in ~igure 5.
DE~AILED DESCRIP~ION OF ~HE PREFERRED EM~ODIM N~S
Fixst, with reference to Figure 1, there is shown a cigar-ette gxoup5 generally denoted as the number 109 consisting of 2~ two axially aligned tobacco columns 12 and 14 and an intermedi ~- ate double length ~igid mouthpiece 16. In the manufacture of cigarettes 9 the tobacco columns 12 and 14 are attached to opposite ends of the intermediate double length Tigid ~outhpiece 16 by a she~t of tipping material 18 which i~ wrapped aTound the ~ double length rigia mouthpiece 16 and a portio~ of each tobacco column 12 and 14 adjacent to each end of the mouthpiece and - ' adhesi~ely attached thereto by rolling pressure. For example, _ ~ if the double length mouthpiec,e 16 is 52mm long, the tipping material 18 would be 57mm wide so that it overlaps the end of each tobacco column 12 and 14 adjacent to the mouthpiece 16 by approximately 2~mm~ After the tobacco column~ 12 and 14 have been-attached to the double length mouthpiece 16 producing a cigarette group 109 the double length mouthpiece 16 i~ severed ~t its transverse centerline which resulte in two individual cigarettes each having a rigid mouthpiece a-t one end.
In order to assure that the tipping material 18 adheres to the rigid mou-thpiece 9 a paper ring 20 is optionally wrapped about the mouthpiece underlaying the tipping material, as can bes-t be seen in ~igure 2, wherein the tipping material 18 is partially unwound to more clearly show details. In the above discussed manufacturing process9 it is necessary to wrap two paper rings 20 about the double length mouthpiece 16 spaced apart from each othe~ longitudinally of the double leng~th mouth-piece 16 to opposite sides of the transverse cen-terl.i~e of the double length mouthpiece 16.
~igure 3 illustrates an apparatusj generally denoted a~
-~ ! the numeral 22 for winding the two rings 20 around the double _ j I length mouthpiece 16. ~he apparatus 22 consists-of a ..v~ata~)Ly ~L29~L5 mounted double length mouthpiece feed drum 24 and a stationary ring wrapping block 26 loca-ted in adjacent, 8paced relationship to an arcuate portion of the periphery of the mouthpiece feed drum 24.
The mouthpiece feed d~um 24 includes a plurality o~ open ~ notches 28 formed in its' peripheral surface at-substantially _ equally spaced intervals therearound. Each notch 28 is oriented with its longitudinal axis substantially parallel with the axes of rotation of the mouthpiece feed drum 24 and iB adapted to receive therein a double lsngth mouthpiece 16. Preferably, the mouthpiece feed drum 24 .i8 at lea~t as wide as the length of a double length mouthpiece 16, and the depth of each notch 28 is approximately 1/3 mouthpiece diameters so that a ma~ori-ty of the double length mouthpiece 16 remains outside o~ a notch 28. As depicted ~at the area "A~ in Figure 3, before a double length mouthpiece 16 is deposited in a mouthpiece receiving notch 28, two parallel, spaced apart strips 20A of paper, which will be wound about the double length mouthpiece 16 to ~orm the rings 20, are deposited over the mouthpiece receiving notch 28 to either side of the transveIse centerline of the notch 28. The strips 20A are each deposited with its leading edge over the notch 28 so that the leading edge of the ~tTip 20A will be adhesively attached to the double length mouthpiece 16 to be received in the notch 28 with the rest of the strips 20A
t~ailing out over the periphery of the mouthpiece ~eed drum 24 -~ between adjacent notches 28 behind the double length mouthpiece 16 deposited in the notch 28 and to which its leading edge is attached. ,-Referring to ~igures 3 and 4 7 the stationary wrapping block 26 is formed wit~ an arcuate surface ~0 ~paced from and concavely facing the periphe~al surface of the mouthpiece feed drum 24~ The curvature of the arcuate surface 30 of the wrapping block 26 corresponds to the curvature of the peIiphery - - ` of the mouthpiece feed drum 24 so that the space between them = is uniform along the length o~f the wrapping block 26. ~he arcuate surface 30 of the wrapping block 26 includes two parallel 9 spaced apart elongated mouthpiece contact zones 30A
and 30B equally located to either side of the longitudinal centerline of the arcuate surface 30 and extending substantially the full length of the aIcuate surface ~00 Further~ each contact zones 30A and 30B is about as wide as the width of a paper strip 20A and is in alignment with a di~.ferent one of the strips 20Ao The distance between contact ~urfaces 30A and 30B
and the peripheral surface of the drum 24 corresponds to the amount by which the double length mouthpiece projects out of the.
notches 28 beyond the periphery of the feed drum 24. The contact surfaces 30A and 30B are fabricated of a relatively soft9 resilient material having a relatively high coefficient of rolling friction with the material of the double length mouth-piece, for example, on the order of at least 0.2. A suitable material is a low density foam rubber. One such material which has been successfully used is a product sold by Scholl, Inc~ of Memphis~ Tennessee under the trademark ItMO~EFQRM"o - In operation~ as the mouthpiece feed drum 24 rotate~, it sequentially delivers double len~th mouthpieces ~6 to the '~2J~
entrance or upstream end of the stationaIy rinf wrappin~ block 26. As the double length mouthpiece 16 enters the space between the w~apping block 26 and ~eed drum 24, the contact zones 30A
and 30B contact the double length mouthpiece 16 in a notch 28 of the drum 24 causing the eontacted double length-mouthpiece 16 to ~ ~ roll countex to the rotation of the feed drum 24 and out of the - _ ~ notch 28 onto -the peripheral ~u~face of the drum 24. The double length mouthpiece 16 on the peripheral surface of the drum 24 ~ernains in contact with the resilient zones 30A and 30B
sf the wrapping block 26 causing the double length mouthpiece 16 to roll counter to the rotational direction of the wrapping drum 24 on the peripheral sur~ace of the drum 24 between adjacent notches 28 thereby wrapping each of the strips 20A around the perimete~ of the double length mouthpiece 16 forming the two ~paced apart rings ~0 a~ound the double length mouthpiec~ 16 spaced apart f~om each other to oppoqite sides of the transverse centerline of the double leng-th mouthpiece 16.
Now with reference to ~igure 5~ there is shown an apparatus generally denoted as the ~umber 32 9 for attachi~g the two axially aligned tobacco columns 12 and 14 to the intermediately disposed double length mouthpiece 16 by.wrapping the ~heet of tipping material 18 around the mouthpiece 16 and a portion of each tobacco column immediately adjacent to each end of the double length mouthpiece 16O ~he apparatus 32 consists of a rotatably mounted cigarette group feed drum 34 and a stationary ~ ~olling block 36 located in adjacent, spaced relationship to an ~rcuate portion of the periphery of the ~eed drum 34 ~.2~L~9~
~ he feed drum 34 includes a plurality of open notches 38 formed in its9 peripheral surface at substantially equally spaced apart intervals -therea~ound. ~ach notch 38 is oriented with its l~ngitudinal axis substantially parallel with the axis of rotation of the feed drum 34 and is adapted ~o receive there-- in a cigarette group 10. Preferably, the cigarette group feed _ drum is at least as wide as~ the length of a cigarette group 10, and the depth of each notch is approximately 1/3 tobacco column diameters so that a majority of the cigarette group 10 re~ains outside of the notch 38. As depicted ~t area " ~ in Figure 5, before a cigarette group 10 is received in a notch 38, a sheet of tipping mate~ial 18 i9 deposited over the notch 38 so that the leading edge of the sheet of tipping material 18 will be adhesively attached to the double length mout~piece 16 and end portions of the tobaccc columns 12 and 14 to be received in the notch 38 with the rest of the tipping material trailing out over the periphery of the feed drum 34 between ad~acent notche~ ~8 behind the cigarette group 10 to which it is attached.
Refe~ring to Figures 5 and 6, the stationary Iolling block 36 is formed with an arcuate cigaret-te group contact suTface 40 spaced from an~ concavely facing the peripheral Eurface of the feed drum 34. ~he rolling block 36 is located downstIeam of the location whereat the cigarette group 10 iE deposi-ted in the notches 38. The curvature of the arcuate surface 40 corresponds to the curvature of -the periphery of theifeed drum 34 so that - the space between them is uniform along the length of' the roll-_ ing block 36. The space between the contact surface 40 of the , ' .
~.2~9~S
rolling block 36 and peripheral ~urface of the feed drum 34 is smaller than ~he diameter of the cigaret~e group 10. The overall width of the contact surface 40 is generally equal to the width of the feed drum ~4 and is di~ided into three longitudinally extending contact zones, a middle zone 40A straddled by two - virtually identical side zones 40B and 40C. The width "W'l of _ the middle zone 40A i8 substantially equal to the width of the ~ipping material 18, with the longitudinal centeIline 42 of the middle contact zone 40A being in-line with the transverse centerline of the double length rigid mouthpiece of a cigarette group 10 carried by the notches 38 so that the middle contact zone 40A make~ contact only with the double length rigid mouth-piece 16 and a small portion of each tobacco column 12 and 14 immediately adjacent to the ends of the mouthpiece 16 about which the tipping material 18 is to be rolled as the feed drum moves a ~igarette group 10 beneath the rolling block 36. Each of the side zones 40B and 40C eontacts a different one of the tobacco columns 12 and 14 extending from the opposite ends of the double length mouthpiece 16 contacted by the middle zone 40A. ~he middle contact zone 40A and side contact ones 40~ and 40C are mutually coextensive. The middle contact zone 40A is fabricated o~ a relatively soft, resilient material having a relatively high coefficient of rolling friction on the order of 0.2 or higher, such as for example, a low density foam rubber 9 and the like. A suitable commercially a~ailable material has - been ~ound to b~ a product 30ld by Scholl, Inc. of Memphis, ~ennessee ~nder the trademark "MOLE~ORM"~ ~he ~-ide contact zones 40B and 40C are~ pr~ferably, a polished metal.
s The rolling block 36 also can include at least one breaker bar 44 at the enteTing end of the rollin~ block 36. The breakeT
bar 44 is gene~ally as long as the combined lengths of the tobacco columns 12 and 14 and intermediate double length mouth-piece 16 of the cigarette group 10, and is subs~antially ~ . parallel to the cigarette group 10 in a notch 38 passing beneath _ it. In addition, breaker bar 44 projects toward the peIipheral~urface of the feed drum 34 beyond the arcuate contact surface 40.of the rolling block 36. As can be best seen in Figure 5, if the distance between adjacent notches 38 o~ the drum 34 is less than the length of the arcuate contact surface 40~ it may be desirable to provide at least a second breaker bar, generally denoted as the number 46 pro~ecting toward the peripheral sur-face of the drum 34, parallel to the breaker bar 44 and ~paced therefrom by a distance generally correspondlng to the distance between adjacent notches 38~ The second breaker bar 46 is illustrated in ~igure 6 as consisting of -two longitudinally aligned breaker bar hal~es 46A and 46B. As ~hown, the breaker bar half 46A projects fTom the side contact zone and the other ~0 breaker bar half 46B projects from the other side contact zone 40C toward the peripheral surface of the drum 34.
In operation, as the feed drum 34 rotates, it sequentially delivers cigarette group 10 to the entrance or upstream end of the rolling block 36. As a cigarette group 10 en-ters -the space between the rolling block 36 and feed drum 34, the breaker bar -~ ; 44 engages the entire length of the cigarette group 10 disposed ~13-g~
in the notch 38 passing beneath it interfering with the movement of ~ e engaged cigarette group 10 with the ~eed drum 34 causing thi ~ngaged cigarette group 10 to roll counter to the rotation of the feed d~um and out of the notch 38 onto the peripheral sllrf2ce of the drum 34. Immediately after pa~8~ng beneath the - , breaker bar 44, the double length rnou-thpiece 76 of the cigarette _ ' group 10 on the peripheral su~rface of the dxum 34 is contacted by the rssilient middle contact zone 40A of the rolling block contact surface and the two tobacco columns 12 and 14 extending ~rom opposite ends o~ the double length mouthpiece 16 are contacted by different ones of the side contact ~ones 403 and 40C causing the cigarette group 10 to roll counter to the rota-tional direction of the drum 34 on the peripheral surface of the drum 34 between adjacent notches 38 thereby wIapping the tipping material 18 around the double length mouthpiece 16 and end por-tions o~ the tobacco columns 12 and 14 adjacent to the opposite ends of the double length mouthpiece 16 before the cigarette group 10 drops into the next succeeding notch 38. It sometimes is prefe~able to re-roll the cigarette group 10 at least once after the tipping material 18 has been initially wrapped around the cigarette group to assure proper adhesion of the tipping material to the tobacco columns and mouthpiece, Toward this end, the rolling block 36 is longer than the circumference of the cigarette group 10 æo that the cigarette group will make more than one revQlution, ~or example, two and one-half - reYolutions beneath the rolling block 360 In this situation9 the ~econd breaker bar 46 is provided to engage âust the tobacco columns 12 and 14. Each breaker bar half 46A and 46~ of the sec~nd breaker bar 46 engages a different one of the tobacco columns 12 and 14 of the cigarette group 10 to either side of the intermediat~ rigid double length mouthpiec~ 16 to roll the cigarette group 10 out o~ the succeeding notch ~8 and b~ck onto - -the peripheral surface of the drum 34. With the cigarette group _ ' 10 again on the peripheral s~rface of the drum 34, the resilient middle contact zone 40A engages the tipping mateTial around the rigid mouthpiece 16 and the side contact zones 40~i and 40C engage different ones of the attached tobacco columns 12 and 14 causing the cigarette group 10 to again ~oll counter to the rotational direction of the drum on the peripheral surface between adjacent notches thereby re-rolling the tipping material 18 before the cigarette group 10 drops into the next succeeding notch 380 The rolling block 34 can be made to any desired length to cause the cigarette group iO to ~e successive-ly re-rolled any number of times. However, additional breaker bars similar -to the second breaker bar 46 may have to be provided at intervals therealong generally corresponding to the distance between adjacent notches 38 in the feed drum 34 to cause the cigarette groups to roll out of the notches 3~ and onto the peripheral surface of the drum 34.
The foregoing detailed description i~ given primarily for clearness of understanding and no unnecessary limitations are to be understood therefrom for mo~ifications will become obvious to - those skilled in the art upon reading this disclosure and may be made without .departing from the spirit of the in~ention and scope of the appended claims.
Varioucf deviceq are known for per~orming the task deEcribed above, ~xamples of heretofore known devices are shown in U~S~ Patent No. 2,166,486 issued on July 18, 1939, to W~F~Mo Edwards; U~SO Patent No. 29194,378 iEsued on March 19, 19~0~ to Adolf Berndfff U~S. Pat~nt No. 2,786,472 issued on March 26, 1957~ to Richard Gruezburg; U.S. Patent No. 2,809~640 25 , issued on October 15, 1957, to Henry A~ Oldenkamp; and U.S.
_ l! patenG No- 3~ 19528 issued on September 26, 1961, to ~. Schubert.
! ~enerally9 the heretofore known devices frlctionally - en~age the perlphery of-the intermediately dispo~ed filter rod and tobacco columns causing the filte~ rod-tobacco column group -,;o roll~ thusJ wTapping the tipping material around the double length ~ilteI ~od a~d portions ~f the tobacco columns adjacent to -the end~ o~ the double length filter rod.
S~MM~RY OF TH~ INVEN~ION
_ _ _ _ While the heretofore known devices of the type de~cribed above may be satisfacto~y to connect filter rods to tobacco columns 9 a two-fold problem arises when attaching a rigid mouth-piece to the tobacco columns. ~ilter rod~ are fabricated of relatively soft, resilient fibrous or foamed materials such as, for example, cellulose acetate which presents a peripheral surface of relatively high coefficient o~ friction to the contact surface of the rolling device. However, rigid mouth-pieces are typically fabricated of a smooth, hard plastic material which has a relatively low coefficient of ~riction.
For this ~eason, when using a heretofore known rolling device to roll the double length mouthpiece-tobacco column group, it OCCUT~ that the double length mouthpiece-tobacco column group will slide rather than roll through the rolling device and the tipping material will, therefore, not be wrapped around the rigid double length mouthpiece and portions of the tobacco columns adja~ent to the ends of the mouthpiece. Increasing the normally directed force e~erted by the rolling device against the double length mouthpiece will increa~e the functional force 25- between the ~olling device and mouthpiece, however, the rigid -- material of the mouthpiece will crack if the normal force exerted against it is too great, 9~
The present invention recogni~es thi9 dilemna~ and pro-vides a solution thereto..
Mo~e particularly, in one embodiment the present invention provides a device for applying two paper rings.around the circumference of a doubel length cigarette mout~piece spaced - - ¦ apart from each other to opposite longitudinal ~ides of the transverse centerline of the double length mouthpiece, compris-ing a rotatable drum at least as wide as the length of the double length mouthpiece, the ~otatable drum having a plurality of double length mouthpiece receiving notches formed in its periphery at spaced apart intervals therearound, the notches being oriented with their longitudinal axe~ substantially parallel to the axis of revolution of the drum, and a stationary wrapping block having an arcuate contact surface concavely fac ing the pe~iphery of the drum, the a~cuate contact surface of the wrapper block corresponding to the curvature of the peripheral surface of the drum and being spaced from the peripheral surface of the dru~ by a preselected distance less than the diamete~ of the double length mouthpiece, and two ~paced apart contact zones spaced apa~t to opposite sides of the longitudinal center-line of the wrapping block adapted to contact longitudinally ~paced apart portions of the double length mouthpiece, the contact zones being of a relatively high coefficient of f~iction with the mouthpiece~
25 ; In a furthe~ embodiment the present invention provides a - . device fo~ attaching two cylind~ical tO~-JaCCo columns to an : inte~mediately disposed double length mouthpiece.by w~apping a sheet o~ tipping material around the double length mouthpiece and a po~tion of each tobacco co.lum.Q immediately adjacent to each end of the double length mou1iloiece to form a cigarette group comprising a rotatable drum at least as wide as the combined lengths of the two tobacco columns and inte~mediate ~ double length mouthpiece, the rotatable drum ha~ing a plurality _ of cigarette group receiving nptches formed in its periphery at ~paced apart intervals therearound, the notches being oriented with their longitudinal axes substantially parallel to the axes of rotation of the drum, and a stationary rolling block having an arcuate contact surface concavely facing the periphery of the drum, the arcuate contact surface of the rolling block corres-ponding to the curvature of the peripheral surface of the drum and being spaced from the peripheral ~urface o~ the dxum by a preselected distance less than the diameter of the double length mouthpiece, at least the middle zone of the contact surface being adap-ted to contact the intermediately disposed double length mouthpiece of the cigarette group on the peripheral sur~ace of the drum between adjacent notches formed in the drum being o~ relatively soft, resilient material having a rela-tively high coefficient of ~riction with the mouthpiece.
BRIEF DESCRIP~ION OF ~HE DRAWINGS
A more clear understandlng of the present invention will be had upon referenca to the following discussion in conjunction 2~ with the accompanylng draw.ings in which like numbers refer to - like parts through t.tle view.s and wherein:
Figure 1 ;Ls typical of a cigaret-te group produced by the present in~ention with the tipping material partially unwrapped to more clearly 3how details;
Figure 2 .is ~nother ve~slon of a cigarette group produced by the present invention with the tipping mater.~al partially ~ l unwrapped to mo~e clea~ly show details;
_ FiguIe 3 is a perspective view of an apparatus embodying the present invention for wrapping two spaced apart rings around the perimete~ of a double length mouthpiece spaced apaIt to opposite sides of the transverse centerline of the double length mouthpiece;
Figure 4 is an enlarged bottom view of a stationary w~ap-ping block of the present invention as viewed in the direction of arrows 4-4 in Figure 3;
Figure 5 is a perspective view of an apparatus embodying the pxesent invention for attaching two cylindrical tobacco columns to an inteTmediately disposed double length rigid mouth~.
piece; and, Figure 6 is an enlarged bottom ~iew of a stationary rolling block of the present invention as ~iewed in the diTection of arrows 6-6 in ~igure 5.
DE~AILED DESCRIP~ION OF ~HE PREFERRED EM~ODIM N~S
Fixst, with reference to Figure 1, there is shown a cigar-ette gxoup5 generally denoted as the number 109 consisting of 2~ two axially aligned tobacco columns 12 and 14 and an intermedi ~- ate double length ~igid mouthpiece 16. In the manufacture of cigarettes 9 the tobacco columns 12 and 14 are attached to opposite ends of the intermediate double length Tigid ~outhpiece 16 by a she~t of tipping material 18 which i~ wrapped aTound the ~ double length rigia mouthpiece 16 and a portio~ of each tobacco column 12 and 14 adjacent to each end of the mouthpiece and - ' adhesi~ely attached thereto by rolling pressure. For example, _ ~ if the double length mouthpiec,e 16 is 52mm long, the tipping material 18 would be 57mm wide so that it overlaps the end of each tobacco column 12 and 14 adjacent to the mouthpiece 16 by approximately 2~mm~ After the tobacco column~ 12 and 14 have been-attached to the double length mouthpiece 16 producing a cigarette group 109 the double length mouthpiece 16 i~ severed ~t its transverse centerline which resulte in two individual cigarettes each having a rigid mouthpiece a-t one end.
In order to assure that the tipping material 18 adheres to the rigid mou-thpiece 9 a paper ring 20 is optionally wrapped about the mouthpiece underlaying the tipping material, as can bes-t be seen in ~igure 2, wherein the tipping material 18 is partially unwound to more clearly show details. In the above discussed manufacturing process9 it is necessary to wrap two paper rings 20 about the double length mouthpiece 16 spaced apart from each othe~ longitudinally of the double leng~th mouth-piece 16 to opposite sides of the transverse cen-terl.i~e of the double length mouthpiece 16.
~igure 3 illustrates an apparatusj generally denoted a~
-~ ! the numeral 22 for winding the two rings 20 around the double _ j I length mouthpiece 16. ~he apparatus 22 consists-of a ..v~ata~)Ly ~L29~L5 mounted double length mouthpiece feed drum 24 and a stationary ring wrapping block 26 loca-ted in adjacent, 8paced relationship to an arcuate portion of the periphery of the mouthpiece feed drum 24.
The mouthpiece feed d~um 24 includes a plurality o~ open ~ notches 28 formed in its' peripheral surface at-substantially _ equally spaced intervals therearound. Each notch 28 is oriented with its longitudinal axis substantially parallel with the axes of rotation of the mouthpiece feed drum 24 and iB adapted to receive therein a double lsngth mouthpiece 16. Preferably, the mouthpiece feed drum 24 .i8 at lea~t as wide as the length of a double length mouthpiece 16, and the depth of each notch 28 is approximately 1/3 mouthpiece diameters so that a ma~ori-ty of the double length mouthpiece 16 remains outside o~ a notch 28. As depicted ~at the area "A~ in Figure 3, before a double length mouthpiece 16 is deposited in a mouthpiece receiving notch 28, two parallel, spaced apart strips 20A of paper, which will be wound about the double length mouthpiece 16 to ~orm the rings 20, are deposited over the mouthpiece receiving notch 28 to either side of the transveIse centerline of the notch 28. The strips 20A are each deposited with its leading edge over the notch 28 so that the leading edge of the ~tTip 20A will be adhesively attached to the double length mouthpiece 16 to be received in the notch 28 with the rest of the strips 20A
t~ailing out over the periphery of the mouthpiece ~eed drum 24 -~ between adjacent notches 28 behind the double length mouthpiece 16 deposited in the notch 28 and to which its leading edge is attached. ,-Referring to ~igures 3 and 4 7 the stationary wrapping block 26 is formed wit~ an arcuate surface ~0 ~paced from and concavely facing the periphe~al surface of the mouthpiece feed drum 24~ The curvature of the arcuate surface 30 of the wrapping block 26 corresponds to the curvature of the peIiphery - - ` of the mouthpiece feed drum 24 so that the space between them = is uniform along the length o~f the wrapping block 26. ~he arcuate surface 30 of the wrapping block 26 includes two parallel 9 spaced apart elongated mouthpiece contact zones 30A
and 30B equally located to either side of the longitudinal centerline of the arcuate surface 30 and extending substantially the full length of the aIcuate surface ~00 Further~ each contact zones 30A and 30B is about as wide as the width of a paper strip 20A and is in alignment with a di~.ferent one of the strips 20Ao The distance between contact ~urfaces 30A and 30B
and the peripheral surface of the drum 24 corresponds to the amount by which the double length mouthpiece projects out of the.
notches 28 beyond the periphery of the feed drum 24. The contact surfaces 30A and 30B are fabricated of a relatively soft9 resilient material having a relatively high coefficient of rolling friction with the material of the double length mouth-piece, for example, on the order of at least 0.2. A suitable material is a low density foam rubber. One such material which has been successfully used is a product sold by Scholl, Inc~ of Memphis~ Tennessee under the trademark ItMO~EFQRM"o - In operation~ as the mouthpiece feed drum 24 rotate~, it sequentially delivers double len~th mouthpieces ~6 to the '~2J~
entrance or upstream end of the stationaIy rinf wrappin~ block 26. As the double length mouthpiece 16 enters the space between the w~apping block 26 and ~eed drum 24, the contact zones 30A
and 30B contact the double length mouthpiece 16 in a notch 28 of the drum 24 causing the eontacted double length-mouthpiece 16 to ~ ~ roll countex to the rotation of the feed drum 24 and out of the - _ ~ notch 28 onto -the peripheral ~u~face of the drum 24. The double length mouthpiece 16 on the peripheral surface of the drum 24 ~ernains in contact with the resilient zones 30A and 30B
sf the wrapping block 26 causing the double length mouthpiece 16 to roll counter to the rotational direction of the wrapping drum 24 on the peripheral sur~ace of the drum 24 between adjacent notches 28 thereby wrapping each of the strips 20A around the perimete~ of the double length mouthpiece 16 forming the two ~paced apart rings ~0 a~ound the double length mouthpiec~ 16 spaced apart f~om each other to oppoqite sides of the transverse centerline of the double leng-th mouthpiece 16.
Now with reference to ~igure 5~ there is shown an apparatus generally denoted as the ~umber 32 9 for attachi~g the two axially aligned tobacco columns 12 and 14 to the intermediately disposed double length mouthpiece 16 by.wrapping the ~heet of tipping material 18 around the mouthpiece 16 and a portion of each tobacco column immediately adjacent to each end of the double length mouthpiece 16O ~he apparatus 32 consists of a rotatably mounted cigarette group feed drum 34 and a stationary ~ ~olling block 36 located in adjacent, spaced relationship to an ~rcuate portion of the periphery of the ~eed drum 34 ~.2~L~9~
~ he feed drum 34 includes a plurality of open notches 38 formed in its9 peripheral surface at substantially equally spaced apart intervals -therea~ound. ~ach notch 38 is oriented with its l~ngitudinal axis substantially parallel with the axis of rotation of the feed drum 34 and is adapted ~o receive there-- in a cigarette group 10. Preferably, the cigarette group feed _ drum is at least as wide as~ the length of a cigarette group 10, and the depth of each notch is approximately 1/3 tobacco column diameters so that a majority of the cigarette group 10 re~ains outside of the notch 38. As depicted ~t area " ~ in Figure 5, before a cigarette group 10 is received in a notch 38, a sheet of tipping mate~ial 18 i9 deposited over the notch 38 so that the leading edge of the sheet of tipping material 18 will be adhesively attached to the double length mout~piece 16 and end portions of the tobaccc columns 12 and 14 to be received in the notch 38 with the rest of the tipping material trailing out over the periphery of the feed drum 34 between ad~acent notche~ ~8 behind the cigarette group 10 to which it is attached.
Refe~ring to Figures 5 and 6, the stationary Iolling block 36 is formed with an arcuate cigaret-te group contact suTface 40 spaced from an~ concavely facing the peripheral Eurface of the feed drum 34. ~he rolling block 36 is located downstIeam of the location whereat the cigarette group 10 iE deposi-ted in the notches 38. The curvature of the arcuate surface 40 corresponds to the curvature of -the periphery of theifeed drum 34 so that - the space between them is uniform along the length of' the roll-_ ing block 36. The space between the contact surface 40 of the , ' .
~.2~9~S
rolling block 36 and peripheral ~urface of the feed drum 34 is smaller than ~he diameter of the cigaret~e group 10. The overall width of the contact surface 40 is generally equal to the width of the feed drum ~4 and is di~ided into three longitudinally extending contact zones, a middle zone 40A straddled by two - virtually identical side zones 40B and 40C. The width "W'l of _ the middle zone 40A i8 substantially equal to the width of the ~ipping material 18, with the longitudinal centeIline 42 of the middle contact zone 40A being in-line with the transverse centerline of the double length rigid mouthpiece of a cigarette group 10 carried by the notches 38 so that the middle contact zone 40A make~ contact only with the double length rigid mouth-piece 16 and a small portion of each tobacco column 12 and 14 immediately adjacent to the ends of the mouthpiece 16 about which the tipping material 18 is to be rolled as the feed drum moves a ~igarette group 10 beneath the rolling block 36. Each of the side zones 40B and 40C eontacts a different one of the tobacco columns 12 and 14 extending from the opposite ends of the double length mouthpiece 16 contacted by the middle zone 40A. ~he middle contact zone 40A and side contact ones 40~ and 40C are mutually coextensive. The middle contact zone 40A is fabricated o~ a relatively soft, resilient material having a relatively high coefficient of rolling friction on the order of 0.2 or higher, such as for example, a low density foam rubber 9 and the like. A suitable commercially a~ailable material has - been ~ound to b~ a product 30ld by Scholl, Inc. of Memphis, ~ennessee ~nder the trademark "MOLE~ORM"~ ~he ~-ide contact zones 40B and 40C are~ pr~ferably, a polished metal.
s The rolling block 36 also can include at least one breaker bar 44 at the enteTing end of the rollin~ block 36. The breakeT
bar 44 is gene~ally as long as the combined lengths of the tobacco columns 12 and 14 and intermediate double length mouth-piece 16 of the cigarette group 10, and is subs~antially ~ . parallel to the cigarette group 10 in a notch 38 passing beneath _ it. In addition, breaker bar 44 projects toward the peIipheral~urface of the feed drum 34 beyond the arcuate contact surface 40.of the rolling block 36. As can be best seen in Figure 5, if the distance between adjacent notches 38 o~ the drum 34 is less than the length of the arcuate contact surface 40~ it may be desirable to provide at least a second breaker bar, generally denoted as the number 46 pro~ecting toward the peripheral sur-face of the drum 34, parallel to the breaker bar 44 and ~paced therefrom by a distance generally correspondlng to the distance between adjacent notches 38~ The second breaker bar 46 is illustrated in ~igure 6 as consisting of -two longitudinally aligned breaker bar hal~es 46A and 46B. As ~hown, the breaker bar half 46A projects fTom the side contact zone and the other ~0 breaker bar half 46B projects from the other side contact zone 40C toward the peripheral surface of the drum 34.
In operation, as the feed drum 34 rotates, it sequentially delivers cigarette group 10 to the entrance or upstream end of the rolling block 36. As a cigarette group 10 en-ters -the space between the rolling block 36 and feed drum 34, the breaker bar -~ ; 44 engages the entire length of the cigarette group 10 disposed ~13-g~
in the notch 38 passing beneath it interfering with the movement of ~ e engaged cigarette group 10 with the ~eed drum 34 causing thi ~ngaged cigarette group 10 to roll counter to the rotation of the feed d~um and out of the notch 38 onto the peripheral sllrf2ce of the drum 34. Immediately after pa~8~ng beneath the - , breaker bar 44, the double length rnou-thpiece 76 of the cigarette _ ' group 10 on the peripheral su~rface of the dxum 34 is contacted by the rssilient middle contact zone 40A of the rolling block contact surface and the two tobacco columns 12 and 14 extending ~rom opposite ends o~ the double length mouthpiece 16 are contacted by different ones of the side contact ~ones 403 and 40C causing the cigarette group 10 to roll counter to the rota-tional direction of the drum 34 on the peripheral surface of the drum 34 between adjacent notches 38 thereby wIapping the tipping material 18 around the double length mouthpiece 16 and end por-tions o~ the tobacco columns 12 and 14 adjacent to the opposite ends of the double length mouthpiece 16 before the cigarette group 10 drops into the next succeeding notch 38. It sometimes is prefe~able to re-roll the cigarette group 10 at least once after the tipping material 18 has been initially wrapped around the cigarette group to assure proper adhesion of the tipping material to the tobacco columns and mouthpiece, Toward this end, the rolling block 36 is longer than the circumference of the cigarette group 10 æo that the cigarette group will make more than one revQlution, ~or example, two and one-half - reYolutions beneath the rolling block 360 In this situation9 the ~econd breaker bar 46 is provided to engage âust the tobacco columns 12 and 14. Each breaker bar half 46A and 46~ of the sec~nd breaker bar 46 engages a different one of the tobacco columns 12 and 14 of the cigarette group 10 to either side of the intermediat~ rigid double length mouthpiec~ 16 to roll the cigarette group 10 out o~ the succeeding notch ~8 and b~ck onto - -the peripheral surface of the drum 34. With the cigarette group _ ' 10 again on the peripheral s~rface of the drum 34, the resilient middle contact zone 40A engages the tipping mateTial around the rigid mouthpiece 16 and the side contact zones 40~i and 40C engage different ones of the attached tobacco columns 12 and 14 causing the cigarette group 10 to again ~oll counter to the rotational direction of the drum on the peripheral surface between adjacent notches thereby re-rolling the tipping material 18 before the cigarette group 10 drops into the next succeeding notch 380 The rolling block 34 can be made to any desired length to cause the cigarette group iO to ~e successive-ly re-rolled any number of times. However, additional breaker bars similar -to the second breaker bar 46 may have to be provided at intervals therealong generally corresponding to the distance between adjacent notches 38 in the feed drum 34 to cause the cigarette groups to roll out of the notches 3~ and onto the peripheral surface of the drum 34.
The foregoing detailed description i~ given primarily for clearness of understanding and no unnecessary limitations are to be understood therefrom for mo~ifications will become obvious to - those skilled in the art upon reading this disclosure and may be made without .departing from the spirit of the in~ention and scope of the appended claims.
Claims (16)
1. A device for applying two paper rings around the circumference of a double length cigarette mouthpiece spaced apart from each other to opposite longitudinal sides of the transverse centerline of the double length mouthpiece, compris-ing:
a rotatable drum at least as wide as the length of a double length mouthpiece, the rotatable drum having a plurality of double length mouthpiece receiving notches formed in its periphery at spaced apart intervals therearound, the notches being oriented with their longitudinal axes substantially parallel to the axis of rotation of the drum; and, a stationary wrapping block having an arcuate contact surface concavely facing the periphery of the drum, the arcuate contact surface of the wrapping block corresponding to the curvature of the peripheral surface of the drum and being spaced from the peripheral surface of the drum by a preselected distance less than the diameter of the double length mouthpiece, and two spaced apart contact zones spaced apart to opposite sides of the longitudinal centerline of the wrapping block adapted to contact longitudinally spaced apart portions of the double length mouthpiece, the contact zones being of a relative-ly soft, resilient material having a relatively high coefficient of friction with the mouthpiece.
a rotatable drum at least as wide as the length of a double length mouthpiece, the rotatable drum having a plurality of double length mouthpiece receiving notches formed in its periphery at spaced apart intervals therearound, the notches being oriented with their longitudinal axes substantially parallel to the axis of rotation of the drum; and, a stationary wrapping block having an arcuate contact surface concavely facing the periphery of the drum, the arcuate contact surface of the wrapping block corresponding to the curvature of the peripheral surface of the drum and being spaced from the peripheral surface of the drum by a preselected distance less than the diameter of the double length mouthpiece, and two spaced apart contact zones spaced apart to opposite sides of the longitudinal centerline of the wrapping block adapted to contact longitudinally spaced apart portions of the double length mouthpiece, the contact zones being of a relative-ly soft, resilient material having a relatively high coefficient of friction with the mouthpiece.
2. The device of Claim 1, wherein the arcuate contact surface of the wrapping block is longer than the distance between adjacent double length mouthpiece receiving notches of the drum.
3. The device of Claim 1, wherein the notches formed in the drum have a depth of less than the diameter of a double length mouthpiece so that a majority of the double length mouth-piece remains outside of the notch.
4. The device of Claim 1, wherein the soft, resilient material of the contact zones has a coefficient of rolling friction with the double length mouthpiece of at least 0.2,
5. A device for attaching two cylindrical tobacco columns to an intermediately disposed double length, rigid mouth-piece by wrapping a sheet of tipping material around the double length rigid mouthpiece and a portion of each tobacco column immediately adjacent to each end of the double length mouthpiece to form a cigarette group, comprising:
a rotatable drum at least as wide as the combined lengths of the two tobacco columns and intermediate double length, rigid mouthpiece, the rotatable drum having a plurality of cigarette group receiving notches formed in its periphery at spaced apart intervals therearound, the notches being oriented with their longitudinal axes substantially parallel to the axis of rotation of the drum; and, a stationary rolling block having an arcuate contact surface concavely facing the periphery of the drum, the arcuate contact surface of the rolling block corresponding to the curvature of the peripheral surface of the drum and being spaced from the peripheral surface of the drum by a preselected distance less than the diameter of the double length mouthpiece, at least the middle zone of the contact surface being adapted to contact the intermediately disposed double length rigid mouthpiece of the cigarette group on the peripheral surface of the drum between adjacent notches formed in the drum being of a relatively soft, resilient material having a relatively high coefficient of friction with the mouthpiece.
a rotatable drum at least as wide as the combined lengths of the two tobacco columns and intermediate double length, rigid mouthpiece, the rotatable drum having a plurality of cigarette group receiving notches formed in its periphery at spaced apart intervals therearound, the notches being oriented with their longitudinal axes substantially parallel to the axis of rotation of the drum; and, a stationary rolling block having an arcuate contact surface concavely facing the periphery of the drum, the arcuate contact surface of the rolling block corresponding to the curvature of the peripheral surface of the drum and being spaced from the peripheral surface of the drum by a preselected distance less than the diameter of the double length mouthpiece, at least the middle zone of the contact surface being adapted to contact the intermediately disposed double length rigid mouthpiece of the cigarette group on the peripheral surface of the drum between adjacent notches formed in the drum being of a relatively soft, resilient material having a relatively high coefficient of friction with the mouthpiece.
6. The device of Claim 5, wherein the rolling block further comprises two side contact surfaces straddling the middle contact surface, and each of the side contact surfaces being adapted to contact a different one of the tobacco columns of the cigarette group on the peripheral surface of the drum.
7. The device of Claim 6, wherein the side contact surfaces are generally co-extensive with the middle contact surface.
8. The device of Claim 6, wherein the side contact surfaces are fabricated of a relatively hard material and present a smooth surface to the tobacco columns.
9. The device of Claim 8, wherein the side contact surfaces of the rolling block are polished metal.
10. The device of Claim 5, further comprising means for causing the cigarette groups to roll out of the notches of the drum and onto the peripheral surface of the drum as the cigar-ette groups enter the space defined between the arcuate contact surface and periphery of the drum.
11. The device of Claim 10, wherein the means for causing the cigarette groups to roll out of the notches and onto the periphery of the drum comprises a breaker bar at the entering end of the rolling block, the breaker bar being generally as long as the combined lengths of the two tobacco columns and intermediate double length rigid mouthpiece of the cigarette group, the breaker bar being substantially parallel to the longitudinal axes of the notches in the rotatable drum and pro-jecting from the arcuate surface of the rolling block toward the peripheral surface of the drum to contact the cigarette group passing beneath the breaker bar to roll the cigarette group out of the notch and onto the peripheral surface of the drum between adjacent notches.
12. The device of Claim 5, wherein the arcuate contact surface of the rolling block is longer than the distance between adjacent cigarette groups receiving notches of the drum so that the cigarette group will make more than one revolution as it passes beneath the arcuate contact surface of the rolling block.
13. The device of Claim 12, further comprising:
first means for causing the cigarette groups to roll out of the notches of the drum and onto the peripheral surface of the drum as the cigarette group enters the space between the arcuate contact surface and periphery of the drum; and, second means spaced along the arcuate contact surface from the first means by a distance generally corresponding to the distance between adjacent notches for causing the cigarette groups to roll out of the notches of the drum and onto the peripheral surface of the drum.
first means for causing the cigarette groups to roll out of the notches of the drum and onto the peripheral surface of the drum as the cigarette group enters the space between the arcuate contact surface and periphery of the drum; and, second means spaced along the arcuate contact surface from the first means by a distance generally corresponding to the distance between adjacent notches for causing the cigarette groups to roll out of the notches of the drum and onto the peripheral surface of the drum.
14. The device of Claim 13, wherein:
the first means for rolling cigarette groups out of a notch comprises a first breaker bar at the entering end of the rolling block, the breaker bar being generally as long as the combined lengths of the two tobacco columns and intermediate double length mouthpiece of the cigarette groups the breaker bar being substantially parallel to the longitudinal axes of the notches in the rotatable drum and projects from the arcuate surface of the rolling block toward the peripheral surface of the drum to contact the tobacco columns and intermediate double length mouthpiece of a cigarette group in a notch of the drum as the cigarette group passes beneath the breaker bar to roll the cigarette group out of the notch and onto the peripheral surface of the drum between adjacent notches; and, the second means for rolling cigarette groups out of the notch comprises at least one second breaker bar spaced along the arcuate contact surface from the first breaker bar by a distance generally corresponding to the distance between adjacent cigarette groups receiving notches of the drum, the second breaker bar including two longitudinally aligned breaker bar halves projecting from the arcuate surface of the rolling block from either side of the middle of contact zone toward the peripheral surface of the drum to contact only the two tobacco columns of the cigarette groups passing beneath the second breaker bar to roll the cigarette groups out of the notch and onto the peripheral surface of the drum between adjacent notches.
the first means for rolling cigarette groups out of a notch comprises a first breaker bar at the entering end of the rolling block, the breaker bar being generally as long as the combined lengths of the two tobacco columns and intermediate double length mouthpiece of the cigarette groups the breaker bar being substantially parallel to the longitudinal axes of the notches in the rotatable drum and projects from the arcuate surface of the rolling block toward the peripheral surface of the drum to contact the tobacco columns and intermediate double length mouthpiece of a cigarette group in a notch of the drum as the cigarette group passes beneath the breaker bar to roll the cigarette group out of the notch and onto the peripheral surface of the drum between adjacent notches; and, the second means for rolling cigarette groups out of the notch comprises at least one second breaker bar spaced along the arcuate contact surface from the first breaker bar by a distance generally corresponding to the distance between adjacent cigarette groups receiving notches of the drum, the second breaker bar including two longitudinally aligned breaker bar halves projecting from the arcuate surface of the rolling block from either side of the middle of contact zone toward the peripheral surface of the drum to contact only the two tobacco columns of the cigarette groups passing beneath the second breaker bar to roll the cigarette groups out of the notch and onto the peripheral surface of the drum between adjacent notches.
15. The device of Claim 5, wherein the notches formed in the drum have a depth of less than the diameter of a cigarette group so that a majority of the cigarette group remains outside of the notches.
16. The device of Claim 5, wherein the soft, resilient material of the middle contact zone has a coefficient of rolling friction with the double length mouthpiece of at least 0.2.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US541,171 | 1983-10-12 | ||
| US06/541,171 US4527570A (en) | 1983-10-12 | 1983-10-12 | Device for manufacturing a mouthpiece and attaching mouthpieces to cigarette tobacco columns |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1242945A true CA1242945A (en) | 1988-10-11 |
Family
ID=24158472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000465224A Expired CA1242945A (en) | 1983-10-12 | 1984-10-11 | Device for manufacturing a mouthpiece and attaching mouthpieces to cigarette tobacco columns |
Country Status (21)
| Country | Link |
|---|---|
| US (1) | US4527570A (en) |
| JP (1) | JPS6098977A (en) |
| AT (1) | AT385632B (en) |
| AU (1) | AU548715B2 (en) |
| BE (1) | BE900765A (en) |
| BR (1) | BR8405137A (en) |
| CA (1) | CA1242945A (en) |
| CH (1) | CH666387A5 (en) |
| DE (1) | DE3435015A1 (en) |
| DK (1) | DK160797C (en) |
| ES (1) | ES8605959A1 (en) |
| FI (1) | FI73870C (en) |
| FR (1) | FR2553264B1 (en) |
| GB (1) | GB2148692B (en) |
| GR (1) | GR80608B (en) |
| IL (1) | IL73310A (en) |
| IT (1) | IT1176901B (en) |
| LU (1) | LU85559A1 (en) |
| NL (1) | NL191378C (en) |
| NO (1) | NO162145C (en) |
| SE (1) | SE459382B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8334664D0 (en) * | 1983-12-30 | 1984-02-08 | Molins Plc | Filter cigarette manufacture |
| US5191906A (en) * | 1990-10-30 | 1993-03-09 | Philip Morris Incorporated | Process for making wrappers for smoking articles which modify the burn rate of the smoking article |
| MY187687A (en) | 2011-06-03 | 2021-10-11 | Tobacco Res & Dev Inst Pty Ltd | Improvements relating to smoking article assembly |
| BR112015013146B1 (en) | 2012-12-06 | 2021-03-02 | British American Tobacco (Investments) Limited | modular apparatus for the manufacture of smoking articles, apparatus for assembling smoking articles, kit, method of reconfiguring a modular apparatus |
| BR112022011806A2 (en) | 2019-12-20 | 2022-08-30 | Philip Morris Products Sa | ELASTIC CONTACT ELEMENT TO WRAP A SHEET AROUND A GROUP OF SEGMENTS |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1183000B (en) * | 1962-07-27 | 1964-12-03 | Zd Y V I Plzen Narodni Podnik | Device for wrapping cigarettes and filter units with a connecting plate for the production of filter cigarettes |
| GB1146206A (en) * | 1966-05-20 | 1969-03-19 | Hauni Werke Koerber & Co Kg | Apparatus for producing rod-like articles |
| US3420243A (en) * | 1967-01-05 | 1969-01-07 | Reynolds Tobacco Co R | Apparatus for making filter tip cigarettes |
| US3526233A (en) * | 1968-08-15 | 1970-09-01 | Reynolds Tobacco Co R | Heat sealing means for filter tipping of cigarettes |
| JPS5510663B2 (en) * | 1973-06-23 | 1980-03-18 | ||
| GB1487422A (en) * | 1974-02-05 | 1977-09-28 | Molins Ltd | Manufacture of cigarettes |
| US4020852A (en) * | 1976-07-07 | 1977-05-03 | R. J. Reynolds Tobacco Company | Apparatus for applying uniting bands to co-axial rod-shaped articles |
| DE2751522C2 (en) * | 1977-02-09 | 1986-06-12 | Hauni-Werke Körber & Co KG, 2050 Hamburg | Device for producing a zone of desired air permeability in a strip of wrapping material for rod-shaped articles in the tobacco processing industry |
| IT1146133B (en) * | 1980-06-20 | 1986-11-12 | Gd Spa | DEVICE FOR THE APPLICATION OF CIGARETTE FILTERS |
| IT1146244B (en) * | 1980-11-17 | 1986-11-12 | Gd Spa | DEVICE FOR THE APPLICATION OF CIGARETTE FILTERS |
| DE3105454C2 (en) * | 1981-02-14 | 1985-06-05 | Fabriques de Tabac Réunies S.A., Neuchâtel | Rod-shaped, smokable article with a filter stick at the mouth end and device for the manufacture of such an article |
-
1983
- 1983-10-12 US US06/541,171 patent/US4527570A/en not_active Expired - Lifetime
-
1984
- 1984-09-20 AT AT0299484A patent/AT385632B/en not_active IP Right Cessation
- 1984-09-20 CH CH4509/84A patent/CH666387A5/en not_active IP Right Cessation
- 1984-09-24 DE DE19843435015 patent/DE3435015A1/en active Granted
- 1984-09-26 AU AU33514/84A patent/AU548715B2/en not_active Ceased
- 1984-09-28 LU LU85559A patent/LU85559A1/en unknown
- 1984-10-05 BE BE0/213789A patent/BE900765A/en not_active IP Right Cessation
- 1984-10-09 IT IT23060/84A patent/IT1176901B/en active
- 1984-10-09 NL NL8403071A patent/NL191378C/en not_active IP Right Cessation
- 1984-10-09 NO NO844041A patent/NO162145C/en not_active IP Right Cessation
- 1984-10-11 ES ES536739A patent/ES8605959A1/en not_active Expired
- 1984-10-11 BR BR8405137A patent/BR8405137A/en not_active IP Right Cessation
- 1984-10-11 SE SE8405094A patent/SE459382B/en not_active IP Right Cessation
- 1984-10-11 CA CA000465224A patent/CA1242945A/en not_active Expired
- 1984-10-11 DK DK486384A patent/DK160797C/en not_active IP Right Cessation
- 1984-10-11 GR GR80608A patent/GR80608B/en unknown
- 1984-10-12 JP JP59214086A patent/JPS6098977A/en active Pending
- 1984-10-12 GB GB08425808A patent/GB2148692B/en not_active Expired
- 1984-10-12 FI FI844018A patent/FI73870C/en not_active IP Right Cessation
- 1984-10-12 FR FR8415677A patent/FR2553264B1/en not_active Expired
- 1984-10-24 IL IL73310A patent/IL73310A/en not_active IP Right Cessation
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